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STPAC01F1

ST Microelectronics
Part Number STPAC01F1
Manufacturer ST Microelectronics
Description RF DETECTOR FOR POWER AMPLIFIER CONTROL
Published Oct 1, 2005
Detailed Description ® STPAC01F1 IPADTM RF DETECTOR FOR POWER AMPLIFIER CONTROL MAIN PRODUCT CHARACTERISTICS The STPAC01F1 has two outputs...
Datasheet PDF File STPAC01F1 PDF File

STPAC01F1
STPAC01F1

Overview
® STPAC01F1 IPADTM RF DETECTOR FOR POWER AMPLIFIER CONTROL MAIN PRODUCT CHARACTERISTICS The STPAC01F1 has two outputs, one for the signal detection and another one for the temperature compensation: VDCout = 0.
88 V at 0.
85 GHz at 10 dBm VDCout = 1.
07 V at 1.
85 GHz at 10 dBm Vsupply = 5 V max.
s s s DESCRIPTION The STPAC01 is an integrated RF detector for the power control stage.
It converts RF signal coming from the coupler into a DC signal usable by the digital stage.
It is based on the use of two similar diodes, one providing the signal detection while the second one is used to provide a temperature information to thermal compensation stage.
A biasing stage suppresses the detection diode drop voltage effect.
Target applications are cellular phones and PDA using GSM, DCS, PCS, AMPS, TDMA , CDMA and 800MHz to 1900MHz frequency ranges BENEFITS s Flip-Chip package PIN CONFIGURATION (ball side) 3 DC out Gnd1 RFin 2 V Temp Gnd1 Gnd1 1 A Gnd2 Bias B C The use of IPAD technology allows the RF front-end designer to save PCB area and to drastically suppress parasitic inductances.
FUNCTIONAL DIAGRAM Coupler VBIAS RF input RF detector Low pass filter Thermal compensation STPAC01F1 GND1 GND2 VDCOut Vtemp TM : IPAD is a trademark of STMicroelectronics.
January 2003 - Ed: 1 1/6 STPAC01F1 ABSOLUTE RATINGS (Tamb = 25°C) Symbol VBIAS PRF FOP VPP TOP TSTG Bias voltage RF power at the RF input Operating frequency range ESD level as per MIL-STD 883E method 3015.
7 notice 8 (HBM) Operating temperature range Storage temperature range Parameter and test conditions Value 5 20 0.
8 to 2 100 -30 to +85 -55 to 150 Unit V dBm GHz V °C °C ELECTRICAL CHARACTERISTICS (Tamb = 25°C) PARAMETERS RELATED TO BIAS VOLTAGE Symbol VBIAS IBIAS Parameter Operating bias voltage Bias current VBIAS = 3.
2 V Test conditions Min.
2.
2 Typ.
Max.
3.
2 0.
5 Unit V mA PARAMETERS RELATED TO DETECTION FUNCTION (VBIAS = 2.
7 V, DC output load = 100 kΩ) Symbol VDCout Parameter DC output voltage (see fig.
1, ...


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